Antifriction side bearing for railway-cars.



J. P. oCoNNoR.

ANTIFBIGTION SIDE BEARING FUR RAILWAY CARS.

APPLICATION IlLIID APB.29, 1910.

Patented Jan 31,1911

'z'fJ :cocci 6 Q .1 i M .a MW mi d n l@ unimi) STATES iwrENT OFFICE.

JOHN E'. OCONNOR, 0F CEICAGO, ILLINOIS, ASSGNOR TO WILLIAM H. MUJER, 0F CHICAGO, ILLINOIS.

ANTIFRICTION SIDE BEARING FOR RAILWAY-CARS.

Specification of Letters Patent.

Patented Jan. 31, 1911.

Applicaticn fixed April 29, 1910. Serial No. 558,322.

To all whom it may concern:

Be it knmvn at- 1 Jeux F. O'Cfmxrm. a f'iiizen of the llniieil Sintes, residing in (`hi cago. in the emmty of Coeli :mil #inte of lllinni, have .invented :i new sind useful lmprovement in Aniifriction Side Bearings for Ruiln'uy-CarS, of which the fnllmvingf is :i specification.

My invention relates to improvements in zuiiriefiun hearing?. mul nuire partivulzxrly anti-`ri i0n silla: hearings for railway mrs.

The object of my invention is to prurile :in niiii-fricimi hearing of :i Strong, simple, dii-Tient uml lunihhx ennrirnetion, Compose/,l of few party. c-npnhh. of being easily assembled, :incl in whirh the :mii-friction nwnlhvr will he sell reniering or capable rif :mmmnticziliy returning to its central or noi-nml pnsitiuiz by its own gravity,

My invention consists in connection with lippe and lower bearing pluies, for exemple, side pluies .secured to the ifm-lemmi hmly hnlslers. of :1 can', of :in zinlirivlinn member of :i curved pnlji'ga/nal i'mm nf snlistzxniinlly uniform vertical llinwnsinn in :lil pmitimis of rotation ur through ihrfliti'vrent reniers :iimn whivh its sei-rui pair# nf nppming ein-rui faves nre Struck. im that when rolling iii-tween the limsi-ing pluies il will have im ii-nrlvmy in. ss-lmrnlv tive-1n m' mise the lnml: mid :imi-frivion imnihvrlxxiring -x plurzllily uf [mira nf nppming :unl mmm-nlrimill'r ciu-wil hearing; fm1-s (if iliiivrem rmlii. the sinn of :my im; ilinmeirivnily npimsilv rznlii hein;A #elimini or always the rumi- :iml (-qnzil' ing the unil'nrni ri-riiinl dimension nr uniun une of the hearing pluies :unl :i vnipvr- Z min;r gniile pin milmii-v mum-civil in m i-ninging this unti-frii-liun memher :incl iruvvling in iid inclini-il ;niilvs tu came liu: :inliral or nurlnzll inmitiun when relieved from loud.

tien uf pars :uid deriee and in the nevel combinations of parts :1mi devices herein shown and described.

In the .fieemnpanying drawing forming a nai-t of this speeiivation, Figure 1 is an vlex'ziiinn Showing truck :rml body holsters of :1 wir fnrni inr `l with :inliriction bearingv vinhmlivri in my invention. Fig. 2 is a rlvtuii vertical section lengmwise of the bolst'vw ihrnngh une of the :mii-friction inemlwrs. Fig. 3 :i vertimi section on line 3 3 of Fig. i. Fig. 4 is fr vertical Section, l\imilar lo Fig. 3. illuslrzi'ing :i modification in rrhirh the guide pin iS marin inn-grail with the :inti-i'rictiun member. Fig. 5 is a detail vlemainn of the :mii-friction member shown in Fig. 4. Fig. V is :i fruta surtionul View, similar At0 l"i 1. showing :i mmliiicniion in whivh thix nin-ning in the anti-friction men her in refaire the gniilipin is of :i circulan' ihm-:ul of :i mirri-l pnlygonnl form, and Fig. I illnirnli-s :i mmliiicziinn in which the pnlygnnzli curwil farmi :mihiriviimi memlwr hns l'ive. pair; nf upping mnrenlrienlly (-nrrml hearing fin-9S in'eml if three pairs, :u umn in Figs. i in G. Fig. is n dingrnsumni ii- View of hmuni-frir'tion nwmher.

lml tvr und l :i inni-r iis-firing plaie Sw'llrwi n the trui-li hnlslvr. The upper hearing plut I; furni ln--i with inriiuwi [hinges (u :xelzlpi il in the invliimliun of (he truss with :i renunnhle tri-mi nr wem' pluie 0f hnrxl--m-l .Hi-ui liiiing in Suitable LHiiles S farmi-:l in Hiv depending filles .l if llw nplwr hearing iilnln Il. iin winne living prefer- ;lily wvnrvi in pusiliun h v :x vieni-hing lip lll. whivh muy' hv lwul over the mul nf thi' lrvnf or \\'1:\r pluie i' :ii'ivr il imi ln'vn inwll'wl.

li i` :e rui'vwl fm1-i pnivgmnil :ulti-iriviiun hem-inf; nwmln-r. roller m' ren-ker nl miii'm'm wrlirzil iiinrvmiim imvrpcweil lwineen lrinlxnring fuites l2. l of liil'm-:Iaii-rmlii l-l, l5. ihn sum ni' whirh ia :1in-nys mnstnnt :xml pulls lhe dimm-,ier if of the :mii-frieiinn member, sn that :'.S lire :mii-friction member rolls between the upper and lower of integral central studs thereonY may be bearing plates, it has no tendency to separate them or liftthe load, the adjacent or meeting curved bearing faces l), 13 being tangent to each other at their points of junction.

T he depending sides 9 of the upper bearing plate are furnished with inclined guides 17 for engagement with a cooperating guide pin or device 18 on or carried b f the antifriction member 11 to cause sai anti-frietion member to be self returnine'. The in elined guides 1T are preferably each in the form ot a recess or groove formed in the inner faces of the lepending sides 9 of the upper bearing platt 3, and the lowermost point 18a of each of lthese guides is at the middle of the. bearing plate 3 so that the anti-friction member 11 will be automatically returned to its central or normal position when the load is relieved therefrom.

The guide pin or device 18 is preferably made in a Separate piece on the anti-friction titl member 1l and in the form of a round pin.I and the anti-friction member 1l is provided with a central opening t9 of larger size than the pin to receive it, the openingr 19 heilig preferably of a carved, polygonal form, or having curved faces 20, concentric with the longer curved faces 1'.) of the anti-friction member l1, as illustrated in Figs. 2 and 3. By making the guide device or pin 1S in'a separate piece from the anti-friction member 11, the anti-friction member is adapted to be inserted upwardly through the open bottom or mouth 2l of 'the upper bearing plate 3, and which is surrounded by the deendinfT sides t) and de )endine' ends 2-2 of D D l said bearing plate. And an opening .'3 is formed in one of the depending sides E) through which the removable pin 18 may be inserte-'l after the anti-friction member 11 is in place, the separate piece tread or wear plate 1 being pnt in place last so that the anti-friction member l1 may be raised sufficiently in the bearing plate 3 to admit the guide pin 18. After the wear plate is inserted. neither the guide pin 1S nor the anti-t`riction member il can be removed until after the wear plate 't' is tahen out, as the. ends of the guide. pin 1S tit. against the bat-lr walls 'Lint' the guide grooves 1T. The removable tread or wear plate T. antit'riction member' ll and removable guide pin 1S and guides li' thus all cooperate in locking or securing the guide pin and antifrittion member in position.

ln the modiliration illustrated in Figs'. -l :ind 5. thc guide pin l5 is made integral with the anti-friction member'll inthe form of studs thereon. and in this construction, the upper bearin; r plate 3, is made of a twopart construction. or with a removable member 3 so that the anti-,friction member 11 with its integral guide device in the form inserted into the bearing plate 3 from above` and the inclined guides 1T being formed without any upper shoulders to the recess.

In the modification illustrated in Fig. 6, the central opening 19 in the anti-friction member' 11 is made circular instead of a curved polygonal form.

In the modification illustrated in Fie'. T, the anti-lriction member 11 has tive pairs instead of three pairs of opposing curved bearing faces of ditlerenty radii.

' In operation, the anti-friction member 11 -when resting ou one of its outer faces comes to reston the center of one of the larger bearing faces 12 as its center of gravity is lowest in such position. Then the member 11 rests on its central trunnion or guide 18 or 1S, it is balanced in any position and does not retard the rolling of trunnion 18 down the inclined guidt 17. In rolling on a,

straight curtace the path of the enter of the member 11 is an undulating line having a cycle for each third of a revolution. In a side bearing, as but. one sixth of a revolution iu each direction is required to be made by the member 11, the action of said member when loaded and .turning in either direction is similar to that of a circular roll, as

all the vertical or central cross dimensions of said member are the same or equal so that its vertical height is constant in every position. lt', when rolled to one side of its center or normal position, the load is removed, the member 11 will then rest on its trmmion 1S or lb and by action of gravitation roll to the center or normal position, the direction of revolution tending to be the same as when rolled .out from the central position; and this increase of extent of revo lation in the same direction tends to bring a new bearing tace 1; ot' rocker down or in engagement with the lower bearing plate 4. li.; h pair ot' bearing faces 12-13 will thus receive tht same use, work or vear. 'hen the member 11 is at rest on a horizontal plane, it will not readily roll, as to so roll requires a force. to raise its center of gravity. When resting on its trunuion 1S or 1S, it cannot revolve unless there is considerable clearance, between the member ll and the bearing plate 3 or 4. The member l1 having a tendenc) to come to rest. with the ecutcr of one otl its larger arcs 12 tangent to surface of lower bearings l, the wearing of a llat place at the center of are 1Q will have much less elfen-.t in retarding rolling action, than in the case of a circular roller of the same diameter as the member l1. as the radius of face 12 is nearly equal to the whole dialncter of the member 1l. The axes ot' the six arcs [Q -13, 1Q--15. 12;-13, which together compose the rolling surface may be converging lines as in case of a cone if great triv lxaring fat-rs ot' lith acvnracy is fleirt'il: thatr is to say, cat-h of the litarin;, r fai-vs 12--13 may luf a #figment nia wmv instead of a augment of a cylinder.

ln coitrnvtion. it is prcforrvil that the nit-mixer 11. hv ot' white iron, and 'the tlun nion or guith pin 1S in a sfparatc 'piove to hv inst-rtvtl looavly, in a scmhling. -This is o' allrantagv in simplifying the ronstrnt. iiull.

ln thil pitilivation anil ,-lainta` thil vxpr|- fion ol' `\nli-lantiall uniform tlinusnrion i# appliwl to thil ilianutrii: lint` through any ot' thi-v ilillt-rvn' twitchv allont whit-h the opposing pair of rnrnal fat-vs art` truck- 11. All thih lim" tirant' through an)A of thv ('vntvr about whivhahxvnrvwl fat-w an rrani al1` aina. vcnh t'oinpi.-vt of thi-Fam of thel ln'o railii ll. i3 :unl ar'l al\\a of cour suniform :unl lluanu\. :intl ontl of thawI wntvrs ot' thv rollvr ll i al\\a 1lirx-i-tly in lixuwith4 thv tanvgtntial or vontarlingf poin of thtvnrjtwl laws olL tht rollor with thi` nppvr anil lowvr livarin;r platvi in n'hatvvtr po ition thtl nu-nihvr 1l may roll or turn.

l rianne-- l. ln an antilriuiion hln hoax-ingr. the minhination with nppvr and lowt'r hearing plgltv. nl. :in ilitllubml ilrlyghll (lll'ttl 'fm'til anli-l'rivtion nwmlwr ol' snhtantiallrv uniform wrtiral linni-ion in all positionS ot' rotation of saizl nuanlur. said anti-frivtion invinlu-.l' havin;r :t rt-riw of pair l ol' opp--in`y 'nrvwl i'onccnirif' lwaring farw ol' ihtivrt-nl railii` Snltantially a: pctiliml- L. ln an anti-trivtion Sithhnaring. tht `oinliination ith uppvr :unl lon'tr l.i'-arin rv platw. oll :In lnlvrpotil pol.\" folltll tllrvwl 'a-'wl antil'rit'lion ina-nahm' of nlh.\tantiall uniform wrtit-:il tlinunsion. :unl harin; r a zjvrins ol. pair ol' oppihing rnrwil -vomtn- 'nl railii. szliil :intrt'rii'tion nuanhtr havirg :t guido (lt-- "han antl inclinvtl gnitis engaging sahl f gnitlv lavica on saizl anti-frittion nwnilwr to raast it to :nit'oniatically return to von. tral or normal position, substantially as Slwiilitrl.

Il. ln an anti-friction htaring. tht.` Conihination with opposing lit-:kring plates. of an inte-rpmwl polygonal tau-Jed faced anti-fric tion nitnxlar of substantially uniform Vtrtival linnaion in all positions of rotation of aaifl nienilwr lwtwvcn Sad hearing plates, saiil anti-l`riclion nwnibur having' a. phirality of pair of oppnaing concvntrically vurretl lwaring,r faces of hilarant radii, substantially as spvcictl.

4. In an anti-friction hearing, the ombination with opposing bearing plates, of an interposed polygonal curved faced anti-fricspia-inail.

3. In an antitriction bearing. tht (fomhination with oppoing hnaring; plates, of an intcrpoawl polygonal curved faced antit'rifrtion nwniln-r vof substantially uniform wrtiral ilinwnion, ami having a plurality l of pairs of uppming, ronrontricall;v curved a` vontrailmingnhwl from a lnnhaun' hoax-in,"r fat-0.2 nl' liilcrenl rzulii. oml of Saifl hearing plains having tlvpviuhng sillas fur with a ri-inora-ile vivai' platt` :intl a removahlv guiihe pin :alapttal to h6 inserted through' saifl anti-tration nwznlrer and through oi=tof thix ilvptnfling sillas of .said hearing;v plata. ull antiallv as aptritifal.

l'. ln an ami-frirtion hvaring'. the coinliination with opponing lit-airingr plata". of an inta-rpmwl polygonal cnrvtii lat-tal antil'ric-tion manila-r ot suhantially nnit'orin wrtival linwihioin ainl having a plurality of painV of oppzbinz. coinantrically vnrwil luarinj;r fai-vs of lili'vrcnt rzuliimw of aill bmrinlf,r plains haring ihpvncling sillas furnishwl with inflinml gniths aint prot'iih'il with :l rvniovnhh what' plato. ainl a wann'- ahhgfniih` pin :ulaptwl to he iINl'Iwl through aicl anti-friilionV numlnr :unl through om of tlutlaiwnlling fiile'` of `mill lwaring platv. `aifl antid'rivlion manillar inning :i polygonal cnrvtil tam-il opvning for rvvvplion of aifl j flliilo pin, fxh an iially :H Lquaint-rl.

T. ln an anti-frivtion sithlli-:ning for railwaj.' vars. thv t-oinhination oit a lowi-r hvaring platt` 4. ot' an nppcr hvarin``r }.-latef-Zlr haring atrvnimahh waar plata.- l". ami le-- planting; ih.-: i) i'nrnishtil ith invlint-l -L'uhhfi of a polygonal val-wil farmi anlifrirtion nunilfcr ll ot' sultantiall" uniform wriit'ul itixnonsion` antl haring a plurality nl' pairs of contvntrif; lfm-wd hearing faces of tlill'vrtnt rmlii. anrl pioviilutl `with a Contral opening :unl a j fniile pin of ainalh-r aiya than Saiil opt-ning l-xtvnilingg( through Suitl anti-frivlion lt-Virt and Mr aging Saiil int'linoil gnitlvs on .said tlupi-inling ailes of :aid tippt-r heal-in;r plata. snhstaniiailv' as Spacifitfl.

ln an anti-frivtion 57th hvaring' for railway vars, the "Umhination of a lower hearing: plat@ 4. of an upper hvaring platt'- l'having a rmnovahio wvar plate S. and (lvpcntling Sitlts D forniahml with invlinvflA guitlcs, oa polygonal curved faced :tnt1- friciion member 11 of substantially niiiorm vertical dimension, and havin"r a plurality of pairs Q concentric curved earing faces nisht-fl with inf-iiiztal ijniihrs. :intl provitletl of different radii, and provided with a een- E insertion of said guide pin, substantially ns trai opcning and a guide in of smaller size specified.

' than said opening cxtenfiing through said i ami-friction device and engaging said in- 5 dined guides on said depending sides ofi Witnesses:

said upper bearing piate one of said de- H. M. MUNDAY, pending sides having an opening therein for PEARL ARAMs.

JOHN F. OCONXOR. p 

